Vehicle-tire.



VEHICLE URE.

` APPLICATION FILED JUNE 9, ISB-I3.

' Patented Feb. 27,1917! Inl/Hill @w92 ,IML

l is represented UNrrEp s'rA'rEs EArENr oEEroE. i

PETER Dj rHRoPP, CE TREN'roN-l NEW JERSEY, AssIGNoR To THE DE LAsKi; AND

THRCPP CIRCULAR WOVEN TIRE COMPANY, 0E TRENTCN,1 NEW JERSEY, A .COR-

PORATION 0E NEW JERSEY.

"o all whom t may concern: Y

Be it known that I, PETER D. THRorr, a citizen of the United States, and resident of Trenton, in the countyv of Mercer and State of New Jersey, `have invented a new and useful Improvement in Vehicle-Tires,A of which the following `is a specification.

This invention relates to vehicle tires with the object' of providing'a tire' of this character which will have the beneficial qualities of the so-called cushion 'tire andlthe s0- called pneumatic tire combined.

Another object is to provide a tire of this character which will have its component parts arranged in a novel manner for securing strength and resiliency.

A further object is to provide a method of making such a tire by -an open cure process and more particularlyby a wrapped treadprocess, and still more'particularly by an open single cure wrapped tread process. ,A -still further obJect is to provide a method for making such a ltire whereby it .may be vulcanized as above mentioned, and

at the same time vulcanized directly on its wheel rim, while the tire and rim aie held in the mold.

Still further objects are to provide Icertain improvements'in the form, construction and arrangen'ient of the several parts whereby the above mentioned objects may be effectively carried out.

.A practical embodiment of the invention in the accompanying drawings, in which,

Figure l represents atransverse section of the completed tire in its mold, and

Fig. y2 represents a detail sect-ion taken at right angles to, the `View represented in Fig. 1. Y y l i, The tire as whole comprises al relatively hard Ibase portion 1, a relatively soft body and tread portion 2, and an inflatable core or center 3. The base portion 1 may be 'composed of a'quite hard rubber compound;

the body and .tread portion 2 may be composed of a softer'rubber compound, and the pregnated fabric and pass it circumferen- `Specification of Letters Patent.

Patenten Een. er, rait.

Application led June 9, 1913. Serial No. 772,611.

tia'lly around the rimi/t, tucking its central portion down on to'the Lfirst layer offthe base l in the rim 4. I then putanother layer of similar compound in the rime and on top of the strip of fabric 5, after which I place another similar strip of fabric 6 around the rim 4 in thesame manner as in the case of the strip 5. Another layer of the rubber compound is similarly placed and' followed by a third strip of fabric 7.

I then build up the ren'iaider of the base l of the tire with more hard rubber compound until it attains about the level of. the inner edges of the'whe'el -rim 4, as clearly shown in the drawings;

Thereupon I' place a very thin layer of the softer' rubber compound on topof the base portion l and lay upon it strips of rubber impregnated fabric8, 9, which havetheir lower edges lapped lover each other, as clearly shown in F ig. l.

After the tire has been thus far completed, I place a so-called air bag or inner' tube, which forms the hollowcore or center 3, in position circumferentially upon the portion of the tire so far built in the rim 4:. This center 3 is provided withan air valve 10',

the stem of which is forced through a small l shown .in Fig. l.

After this air tube has been located in the tire structure, it is inflated sufficiently to `cause it. to hold its circular form, and the building of t'hetire is continued by placing around Athis air tube 3, a considerable4 `amount of 'rubber compound adapted for forming the body and tread portion 2 ot the tire. A fter a certain amount of this conlI-iouud has been placed about thev hollow core 3, the layersof fabric 8, 9, are formed up about this compound/so as to occupy 4the position clearly shown in Figi '1 of' the drawings.

More of the rubber compound then yplaced outside of the layers of fabric 8, 9, and

around the outer 'periphery of ,the hollow center 3, after which the outer edges ofthe fabric layer 7 are formed up about the tire ies- . 45 wrapped tram pme-ess.

.P' 1 compound conatlwmg h@ Wheel rim and 'n 'm 3G inner hah o ,the wlw@ A I nahm camisa,y tha maximes the @firing @if mes b@ vakman@ 1 if 

